Oman, ruins of the city of Qalhat. Only the mosque of Bibi Maryam remains, built in the 13th century when Qalhat was a wealthy trading port, visited by Marco Polo, Ibn Battuta. Earthquake levelled it in 14th century. Single figure of a man in the doorway and outside the small, symmetrical structure. Wearing an orange dishdasha, he holds a point-and-shoot digital camera. Ocean horizon and bright blue sky beyond.